Make ten
Look for two numbers that make 10, and add them first.
Flashcard deck
Number bonds to 20
Pairs that make 20, shown on two ten frames so children see the 10 inside.
Ages 5–821 cards
Try three cards
Tap a card to turn it over and see why.
5 + ? = 20
5 + 15 = 205 and 15 make 20.
11 + ? = 20
11 + 9 = 2011 and 9 make 20.
17 + ? = 20
17 + 3 = 2017 and 3 make 20.
Practising saves your boxes so each card comes back at the right time. You need a free account.
Start practisingAll 21 facts in this deck
- 0 + 20 = 20
- 1 + 19 = 20
- 2 + 18 = 20
- 3 + 17 = 20
- 4 + 16 = 20
- 5 + 15 = 20
- 6 + 14 = 20
- 7 + 13 = 20
- 8 + 12 = 20
- 9 + 11 = 20
- 10 + 10 = 20
- 11 + 9 = 20
- 12 + 8 = 20
- 13 + 7 = 20
- 14 + 6 = 20
- 15 + 5 = 20
- 16 + 4 = 20
- 17 + 3 = 20
- 18 + 2 = 20
- 19 + 1 = 20
- 20 + 0 = 20
Make Ten
Play it as a game
Addition
Print some practice
